[PATCH] D134930: [LoopInterchange] Do not interchange when reduction in subloops is not recognizable

[Congzhe Cao via Phabricator via llvm-commits]

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This is the bugfix to the miscompile mentioned in https://reviews.llvm.org/D132055#3814831.


https://reviews.llvm.org/D134930

Files:
  llvm/lib/Transforms/Scalar/LoopInterchange.cpp
  llvm/test/Transforms/LoopInterchange/multilevel-partial-reduction.ll

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